Title :
MIMO-BICM Iterative Receiver With the EM Based Channel Estimation and Simplified MMSE Combining With Soft Cancellation
Author_Institution :
Inst. of Adv. Telecommun., Univ. of Wales, Swansea
Abstract :
For multiple-input multiple-output (MIMO) bit-interleaved coded modulation (BICM) systems over block fading channels, a computationally efficient iterative receiver is investigated with the expectation-maximization (EM)-based MIMO channel estimation. Replacing a joint detector and decoder by an iterative detector and decoder, the resulting receiver becomes a doubly iterative receiver. To reduce the complexity of the MIMO detection, a simplified minimum mean-square error (MMSE) combining with soft (interference) cancellation (SC) is considered. The relation to the MMSE decision feedback detector (DFD) is also addressed
Keywords :
MIMO systems; channel estimation; expectation-maximisation algorithm; fading channels; interference suppression; iterative decoding; least mean squares methods; modulation coding; radio receivers; MIMO-BICM iterative receiver; MMSE decision feedback detector; block fading channels; expectation-maximization-based MIMO channel estimation; iterative decoder; iterative detector; minimum mean-square error; multiple-input multiple-output bit-interleaved coded modulation systems; soft interference cancellation; Channel estimation; Design for disassembly; Detectors; Fading; Feedback; Interference cancellation; Interleaved codes; Iterative decoding; MIMO; Modulation coding; Channel estimation; doubly iterative receiver; expectation-maximization (EM) algorithm; multiple-input multiple-output (MIMO);
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2006.877667
